From: Effect of RNA quality on transcript intensity levels in microarray analysis of human post-mortem brain tissues
HG-U133_AB chip
HG-U133_Plus2.0 chip
PC_1
PC_2
PC_3
PC_4
Proportion of variance, %
46
12
8
6
54
7
5
Eigenvalue
4.55
1.24
0.80
0.62
5.37
0.73
0.69
0.60